Structure State Density SSD

An important role in thermodynamics and kinetics of cluster formation is played by SSD, F(l/, N)  

We shall assume that the shapes of clusters are nearly spherical, and their surfaces are two-dimensional. The rate of the number of atoms in the surface layer, JVS, to N is approximately equal to 

We can separate the contributions of the body from those of the surface layer to the potential energy and the SSD [6.78]. This permits us to represent (6.36) as 

It can be demonstrated that at Ny, Ns - oo the SSD takes on the following asymptotic form 

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